<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="app">
    <ul>
        <li v-for="(value,key,index) in user">
            {{index}} - {{key}} : {{value}}
        </li>
    </ul>
</div>
<script src="./node_modules/vue/dist/vue.js"></script>
<script type="text/javascript">
    var vm = new Vue({
        el:"#app",
        data:{
            user:{name:'柳岩', gender:'女', age: 21}
        }
    })
</script>
</body>
</html>